Accessible SPI interface?

[czbaterka]

Hello, I am planning to buy KC868-A16 module, but my existing smart home is running on my custom implementation based on CAN bus.

Is it possible to connect CAN bus SPI module (for example the one with MCP2515 and TJA1050) to this board trough SPI interface?

I cannot see any available IO pins that can be used for SPI, but it seems there are unpopulated pins on the ESP?

Maybe those can be used?